AUX Bluetooth Receiver Car Audio Adapter 3.5mm Audio Output/input Can Be Used Product parameters: Product type: Bluetooth receiver Power supply: Battery powered car MP3 player Bluetooth version: 5.3 Transmission distance: 5-10m Power supply voltage: 5V Plug: 3.5mm Gross weight: 40g/0.09lb Color:Gray Product size:4.6x3.1x1.6cm/1.81x1.21x0.62inch Package size:13X10X2cm Feature: Built in lithium battery, fully charged for 1 hour, can be used continuously for 6 hours. Advanced Bluetooth 5.3 technology: The built-in Bluetooth 5.3 chip provides a stable connection for playing music and making handsfree calls through allowing faster pairing with compatible devices, and the built-in microphone can easily end calls with button. No need to hold the phone. This hands- call car accessory makes your driving safer. More auxiliary playing modes: plug and play, lossless audio quality, power off memory support, USB disk , multiple playing modes. Navigation voice broadcast: mobile navigation broadcast, built-in microphone, supports smart voice navigation of mobile phones, and its accuracy is the sound of various mobile phone applications. Lossless audio: Supports lossless audio formats, providing alevel music experience The Package Include: 1x Bluetooth receiver